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Re: [rtl] mbuff_attach for non-root user? (mbuff-0.6.5 relesed).
- To: William Montgomery <william@opinicus.com>
- Subject: Re: [rtl] mbuff_attach for non-root user? (mbuff-0.6.5 relesed).
- From: Tomasz Motylewski <motyl@stan.chemie.unibas.ch>
- Date: Thu, 6 Apr 2000 03:47:06 +0200 (CEST)
- cc: rtl@rtlinux.org
- In-Reply-To: <Pine.LNX.3.96.1000223141635.13408A-100000@thing2.opinicus.com>
Sorry for late replay. Just found a long block of unread email.
On Wed, 23 Feb 2000, William Montgomery wrote:
> On Wed, 23 Feb 2000, Tomasz Motylewski wrote:
>
> > Are there any wishes for 0.6 and 0.7 series? Some documentation I have
> > missed to include?
> >
> Could you provide a mechanism for allocating memory suitable for DMA
> (i.e. physically consecutive addresses)?
Unfortunately this would require different allocation mechanism. Continuous
blocks are limited by memory fragmentation. If you need more than 64 KB,
probably you will need to use the old mem=xxxx boot parameter method and them
mmap /dev/mem
Best regards,
--
Tomek